using System;

class Program
{
    public static void Main(string[] args)
    {
        long n = long.Parse(Console.ReadLine());
        int count = 0;
        for (long i = 2; i * i <= n; i++)
        {
            while (n % i == 0)
            {
                n /= i;
                count++;
            }
        }
        if (n > 1)
        {
            count++;            
        }

        if (count >= 3)
        {
            Console.WriteLine("YES");
            return;
        }
        Console.WriteLine("NO");
    }
}